Power Subsystem - Oracle X5-4 Service Manual

Server Subsystems Overview
Cooling the Two-CPU Configuration
A two-CPU server configuration has fewer components than a fully loaded, four-CPU
configuration. To maximize cooling in a two-CPU configuration, an air baffle is installed
in the memory riser area. The air baffle directs the fan output across the four memory riser
cards and the two CPUs. For more information about the processor subsystem, see
Subsystem" on page
Over-Temperature Issues
When the server cooling system is compromised by a hardware component failure or an airflow
blockage, the internal temperature of the server can increase and cause component failure.
To protect against over-temperature conditions, the server temperature and components are
monitored using sensors. If the reading from a sensor indicates a temperature outside of the
normal operating range of the component, or if a cooling subsystem-related component (such
as a fan module) fails, the server management software lights the server fault indicator for the
component and logs an event in the system event log (SEL). When a fault event occurs, address
the issue immediately.
For information about troubleshooting the server cooling subsystem, see
System Cooling Issues" on page

Power Subsystem

The server is equipped with two 1030/2060 watt auto-ranging hot-swappable power supplies
that support a two CPU configuration at 110–127 VAC, or two or four CPU configuration at
200–240 VAC. The dual power supply configuration provides N+N redundancy.
The server supports the following power modes, server shutdowns, and resets.
Full Power Mode
When full power mode is applied, power is supplied to all the server components, the server
boots, and the operating system (OS) functions. Apply full power mode by pressing the Power
button on the server front panel when the server is in standby power mode. You can also apply
full power to the server from Oracle ILOM. Once the server is operating in full power mode,
the System OK and service processor (SP) indicators are on steady (see
and Normal Operating State Indicators" on page
28 Oracle Server X5-4 Service Manual • December 2015
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